Method of winding more than one yarn on a single bobbin

ABSTRACT

A traverser unit which performs the operation of winding on the bobbin in yarn transfer machines. The transverser unit includes: a traverser which ensures the yarns fed from the creel to be wound on the surface of the bobbin attached to the bobbin bearing on the machine body; a traverser bearing onto which the mentioned traverser is attached; a traverser shaft onto which the mentioned traverser bearing is attached to ensure traverser bearing&#39;s smooth movement along the horizontal direction; a traverser belt which is attached to the mentioned traverser bearing and allow the traverser bearing to perform lateral motion in the horizontal direction; a drive gear which deliver the required drive to the mentioned traverser belt, a multi-traverser apparatus includes at least two mentioned traversers and allows winding more than one yarn on the bobbin.

CROSS-REFERENCE TO RELATED APPLICATIONS

Not applicable.

STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT

Not applicable.

NAMES OF THE PARTIES TO A JOINT RESEARCH AGREEMENT

Not applicable.

INCORPORATION-BY-REFERENCE OF MATERIALS SUBMITTED ON A COMPACT DISC

Not applicable.

BACKGROUND OF THE INVENTION 1. Field of the Invention

The invention relates to a winding method in the transfer machines where hand knitting yarns are wound on a bobbin.

In particular, the invention is related to a winding method which allows more than one yarn to be wound on a single bobbin in the transfer machine.

2. Description of Related Art Including Information Disclosed Under 37 CFR 1.97 and 37 CFR 1.98

Today, hand knitting yarns produced from raw materials such as acrylic, cotton, silk, cotton-acrylic blend etc. are marketed as different types balls of yarn. The final balls are hollow inside and formed only by winding the yarns on top of each other.

In addition to the mentioned ball type, the said yarns can be marketed by winding on bobbins. The yarn is wound on a bobbin by means of a transverser and marketed together with the bobbin. The bobbin rotates around its axis and winds the yarn fed by the traverser on it and the transfer process is realized.

The aforementioned balls of yarns can be packaged as a single color, even though packaging of different colored balls is also possible. A package consisting of different colors of balls is called an assortment.

In the prior art, a separate color yarn is fed into each eye of the balling machine to make assorted packs and these colors are selected and packaged manually by means of an element in the machine. This situation increases labour.

In the state of the art, personnel error can result in an extra or missing color in the package; and therefore, the arrangement can be damaged. When packaged balls are shipped in this condition, the company's reputation is damaged by customer complaints. Besides reputation, it causes losses for the company by causing reclamation penalty.

In the present state of the art, assorted or normal ball packs take up space. This situation increases shipping costs.

In the present state of the art, a single traverser is used for bobbin winding operations, which limits the manufacturer in terms of diversity.

In addition to all these, hand knitting yarns are sold in the United States as one ball. In assorted goods, a package is used to keep different colors together. These packages are distributed on the presentation shelves with customers touching them for trial purposes and their assortments are disrupted. For this reason, there are problems related to the sales of assorted or packaged balls in the United States.

In a literature search, various structures related to the mentioned yarn traverser units have been encountered. One of them is the application no. TR2018/15092 titled “Yarn traversing device for a winding device of a textile machine producing cross-wound bobbins”. In summary of the invention classified as B65H 54/28, it is mentioned that, “The invention relates to a yarn traversing device comprising a yarn guide which is connected via an endless tensioning means in the form of a toothed belt to a single drive, wherein the toothed belt rotates in a largely closed housing of the yarn traversing device and is guided over guide wheels arranged laterally next to the traversing area and a drive wheel connected to an electric motor single drive. According to the invention by a yarn traversing device, in which the toothed belt is guided with its toothing over guide wheels, which have a smooth running surface respectively.”

Another example related to the mentioned configuration is the application no. TR2016/00069 titled “Yarn placement equipment and a method for preparing yarn wound bobbin”. In summary of the invention classified as B65H 54/16, it is mentioned that, “The invention relates to a yarn placement equipment for the preparation of a yarn bobbin wound in a yarn, comprising a bobbin shaft running along the longitudinal axis of a yarn bobbin and a tapered base disk arranged in the bobbin shaft. Yarn placement equipment comprises a yarn bobbin bracket and a yarn guide that stands adjacent to the yarn bobbin or a yarn layer arranged on the yarn bobbin during the winding process. With the help of the yarn guide, the yarn can be wound on the yarn bobbin as layers of the yarn shifted axially relative to each other. A control assembly allows controlling the winding process. The yarn guide can move back and forth in the longitudinal direction of the yarn bobbin with the help of a two-way motion to form the relevant yarn layers according to the yarn bobbin bracket. With a limit position of the lateral motion of the yarn guide towards the base disc, and the base disc of the yarn bobbin, along the longitudinal axis of the yarn bobbin during the winding operation, mounted on the two sided motion of the yarn guide, it can be fed subsequently with respect to each other by means of the feeding motion of the yarn guide and the yarn bobbin. The control mechanism is programmed to keep the relative speed of the yarn guide, resulting from two-way movement and feed movement, to the yarn bobbin constant. The invention also relates to a method for the preparation of the yarn bobbin mentioned above.”

In these applications, one traverser is used during yarn winding. This system can be given as an example of the above disadvantages.

As a result, improvements are being made in parallel with the developing technology in the traversing units of yarn travers machines, so new structures are needed that will eliminate the disadvantages mentioned above and provide solutions for existing systems.

BRIEF SUMMARY OF THE INVENTION

The invention relates to traverser units of the yarn transfer machines, which, unlike the structures used in the present technique, are developed to solve the mentioned disadvantages and to bring some additional advantages.

As mentioned above, in the transfer machines, traversing the yarn over the bobbin surface in a balanced way is performed by means of a traverser.

The mentioned yarn traverser is present a single piece, which winds the yarn over the bobbin by traversing it along a desired width. Since the bobbin revolves around its own axis, the winding of the yarn on the bobbin surface takes place.

The purpose of the invention is to ensure that more than one yarn is wound on a single bobbin by using more than one yarn traverser in the transfer machine.

In this way, it becomes possible to wind different yarns of desired width and number (in accordance with the bobbin length) on the bobbin.

Another purpose of the invention is to make assorted packaging process automatically by winding at least two different yarns at the desired width on the bobbin. Thereby, the process of placing different colored yarns in the package manually will be eliminated and an advantage in terms of labour will be provided.

Another purpose of the invention is to prevent including yarn with wrong color in the assortment since assortment packaging process is performed during winding on the bobbin.

Another purpose of the invention is to wind different colored yarns onto the same bobbin, revealing the difference in thickness in the yarns, and to prevented yarns with thickness errors to be delivered to the customer. When one of the yarns wound on the same bobbin is thick and the other is thin: the thicker one has a larger diameter and the thinner one has a smaller diameter, and this will be seen immediately when looking at the bobbin. And a detailed inspection of the yarn taken into production will be possible.

The purpose of the invention is to eliminate the aforementioned disadvantage regarding the assortment sales in the United States. The sale of assorted balls with bobbin will be carried out by winding different colors on a bobbin. The balls fixed on the bobbin will not easily fall apart by the touch of the customers.

By means of the mentioned winding method, after the yarns are wound, the customers will be able to use yarns of different colors separately after removing the bobbin in the product.

It will also be possible to start knitting from any color without removing the bobbin because each individual yarn is not connected with the other, so the ends are exposed.

The structural characteristics and all advantages of the invention will be understood more clearly through the following figures and the detailed explanation written with reference to these figures. For this reason, the evaluation should be made by considering these figures and detailed explanation.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

FIG. 1 shows a perspective view of the entire structure of the transfer machine where the traverser of the invention is used.

FIG. 2 shows a perspective view of the traverser unit of the invention and bobbin with yarn wound on it.

FIG. 3 shows a perspective view of the traverser unit of the invention.

FIG. 4 shows a front perspective view of the multi-traverser apparatus of the invention.

REFERENCE NUMBERS

-   1. Yarn transfer machine -   10. Creel -   11. Yarn guide -   20. Machine body -   21. Bobbin bearing -   30. Traverser unit -   31. Multi-traverser apparatus -   311. Traverser -   312. Traverser profile -   313. Traverser profile fixing gaps -   32. Traverser bearing -   33. Traverser shaft -   34. Drive gear -   35. Traverser belt -   I. Yarn -   M. Bobbin -   X+. Direction of motion of the traverser -   X−. Direction of motion of the traverser

DETAILED DESCRIPTION OF THE INVENTION

Structural Principle

A yarn transfer machine (1) is a machine that enables the hand knitting yarn to be wound on the bobbin (M). The overall structure comprises a creel (10), a machine body (20) and a traverser unit (30). FIG. 1 shows a perspective view of the yarn transfer machine (1).

The mentioned creel (10) is the place where the completed hand knitting yarns are placed in the machine after being ready to transfer. The yarns (I) are fed from here to the machine body (20).

A yarn guide (11) is located so that it is positioned on top of the machine body (20) in the creel (10) configuration. The yarn guide (11) is used for feeding yarns (I) in the creel (10) to the traverser unit (30) in the machine body (20).

The machine body (20) is the main structure where the yarn (I) from the creel (10) are wound onto the bobbin (M). The traverser unit (30) which perform the wounding process and a bobbin bearing (21) onto which the bobbin (M) is attached are located within the machine body (20).

The mentioned bobbin bearing (21) is the part connected to the machine body (20) where the bobbins (M) on which the yarns (I) will be wound are placed.

The traverser unit (30) is the structure that is configured against the bobbin bearing (21) and allows the yarns (I) to be wound on the bobbin (M) surface in a regular manner. The traverser unit (30) comprises multi-traverser apparatus (31), traverser bearing (32), traverser shaft (33), drive gear (34) and traverser belt (35). FIG. 3 shows a perspective view of the traverser unit (30).

The mentioned multi-traverser apparatus (31) comprises traversers (311) and traverser profile (312) and is the subject of the invention. The multi-traverser apparatus (31) allows winding more than two yarns (I) on the bobbin (M). Four of the mentioned traversers (311) are shown in FIG. 3, three of them are shown in FIG. 4 and their number can be increased up to a desired number (as long as the machine length allows).

Traversers (311) are fixed vertically on the traverser profile (312) by ensuring a desired distance between them. The multi-traverser apparatus (31) comprising the traverser profile (312) and the traversers (311) is of a monolithic structure. On the mentioned traverser profile (312), the traverser profile fixing gaps (313) are formed which will be used to secure the multi-traverser apparatus (31) to the traverser bearings (32). FIG. 4 shows a detailed view of the multi-traverser apparatus (31) of the invention. As shown in the figure, a gap is formed at the end of the traversers (311). The yarn (I) is passed through this gap and thereby during the motion of the traverser (311) the yarn (I) is made to run without getting loose of the traverser (311).

The traverser bearing (32) is the element onto which the multi-traverser apparatus (31) is fixed. The traverser bearing (32) is passed to the multi-traverser shaft (33). By means of the multi-traverser shaft (33), the traverser (311) properly performs right-left motion horizontally along the X+ and X− directions. The smooth horizontal movement of the traverser bearing (32) ensures the smooth movement of the multi-traverser apparatus (31), which ensures a smooth winding.

The traverser shaft (33) is positioned in the traverser unit (30) parallel to the bobbin bearing (21). Thereby, the traversers (311) perform a horizontal motion parallel to the bobbin (M) to allow the winding process to take place.

The traverser belt (35) is connected to the traverser bearing (32) and the traverser bearing (32) is moved to perform back and forward motion along the X+ and X− directions the horizontally. The traverser belt (35) is driven by the motion gear (34). The motion gear (34) is driven by the motor.

The mentioned multi-traverser apparatus (31) is produced in a monolithic structure as shown in FIG. 4 and it is fixed on the traverser bearings (32) as seen in FIG. 3. As an alternative to this configuration, as seen in FIG. 3, a single traverser (311) can be fixed on a separate traverser bearing (32).

Assembly Principle

The invention is of a monolithic structure and comprises traversers (311) mounted on the traverser profile (312) as mentioned above. The monolithic traverser apparatus (31) shown in FIG. 4 comprises three traversers (311). This can be increased up to a desired number. However, due to the machine and bobbin (M) dimensions, the use of three to five traversers (311) will provide a healthier yarn (I) transfer.

The multi-traverser apparatus (31) is secured to the traverser bearing (32) through the traverser profile fixing gaps (313). The traverser bearing (32) is also attached to the traverser shaft (33). The traverser shaft (33) is fixed to the traverser unit (30).

After, the traverser belt (35) is attached to the traverser bearing (32). The traverser belt (35) is also attached to the drive gear (34).

With this assembly, multi-traverser apparatus (31) is installed in the driver unit (30) and multi-yarn winding can be performed. FIG. 4 shows a perspective view of the mounted state of the traverser unit (30).

As an alternative to the monolithic multi-traverser apparatus (31), individual traversers (311) can also be fixed one by one to the traverser bearings (32) as mentioned in the construction principle. It is possible to assemble a desired number of traversers (311) by attaching desired number of traverser bearings (32) on the traverser shaft (33).

Operating Principle

Yarns (I) as many as the number of traversers (311) are fed from the creel (10) to the traverser unit (30), which is assembled in the aforementioned manner. The number of traversers (311) can be seen as three and four in figures and can be up to five and the operating principle will be explained over three traversers (311).

Three yarns (I) are fed to the three traversers (311) as seen in FIG. 2 and the yarns (I) are passed through here and connected to the bobbin (M). The yarns (I) passing through here may be of the same color, or all three may be of different color. Even yarns (I) with different contents can be used. These preferences can be varied according to the marketing method.

The machine operation is started. The bobbin bearing (21) rotates the bobbin (M) around the bobbin bearing's (21) own axis. With the rotation of the bobbin (M), the yarns (I) fixed to the bobbin bearing (21) are drawn and winding on the bobbin (M) starts.

As in the previous technique, the traverser (311) moves left and right horizontally in X+ and X− directions. With this action, the yarn (I) is wound on the bobbin (M) surface in a balanced manner. By means of the multi-traverser apparatus (31) used here, it becomes possible to wind more than one yarns (I) on the bobbin (M).

After winding up to a desired diameter, the machine stops/is stopped and the bobbin (M) is removed from the bobbin bearing (21). With this process, three yarns (I), which are identical or different from each other, are wound on a single bobbin (M) and the bobbin (M) becomes ready to be packaged and marketed.

Above, the information on the transfer machine used for the transfer of hand knitting yarns are provided. Developed multi-traverser apparatus (31) can be applied to a machine where any yarn (I) type is transferred. 

I claim:
 1. A traverser unit which perform the operation of winding on the bobbin in yarn transfer machines, comprising: a traverser which ensures the yarns fed from the creel to be wound on the surface of the bobbin attached to the bobbin bearing on the machine body; a traverser bearing onto which the mentioned traverser is attached; a traverser shaft onto which the mentioned traverser bearing is attached to ensure traverser bearing's smooth movement along the horizontal direction; a traverser belt which is attached to the mentioned traverser bearing and allow the traverser bearing to perform lateral motion in the horizontal direction; a drive gear which deliver the required drive to the mentioned traverser belt (35), characterized by comprising: a multi-traverser apparatus which comprises at least two mentioned traversers and allows winding more than one yarn on the bobbin.
 2. A traverser unit according to claim 1, characterized by comprising a traverser profile onto which the traversers introduced on the mentioned multi-traverser apparatus are mounted with a desired gap apart from each other.
 3. A traverser unit according to claim 1, wherein depending on the machine dimensions, five traversers are mounted on the mentioned multi-traverser apparatus.
 4. A traverser unit according to claim 1, comprising traverser as many as the number of the traverser bearings in the system by fixing one traverser to each traverser bearing.
 5. A method of winding yarns on to bobbin in the yarns transfer machines with a traverser unit comprises a traverser which ensures the yarns fed from the creel to be wound on the surface of the bobbin attached to the bobbin bearing on the machine body; a traverser bearing onto which the mentioned traverser is attached; a traverser shaft onto which the mentioned traverser bearing is attached to ensure traverser bearing's smooth movement along the horizontal direction; a traverser belt which is attached to the mentioned traverser bearing and allow the traverser bearing to perform lateral motion in the horizontal direction; a drive gear which deliver the required drive to the mentioned traverser belt, characterized by comprising the process steps of: passing a multitude of yarns (I) through each traversers (311) in the multi-traverser apparatus and connecting yarns to the bobbin; after connecting the yarns to the bobbin, winding more than one yarn on the bobbin by starting the machine. 